SeisGram2K displays trace channels in one or more trace-group windows. Each trace-group window displays all of its traces with identical time and amplitude scales.
The time base for all trace-group windows can be aligned with the View->AlignTo menu item, and locked in alignment with the View->LockAlignment menu item or with the program argument -display.lockalignment=YES
Most viewing and processing operations act on all traces in a trace-group. A trace-group may contain one or more channels from one or more stations or instruments. For trace-groups containing an orthogonal, three-component set of channels from a unique site, the rotation of horizontal components, an animated particle motion view, and a set of multi-component analysis tools are available.